energy assessment guide for commercial buildings - ECO-III

LEVELS OF ENERGY ASSESSMENT
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Classification of type of risk
Reason for risk
Risk mitigation measure adopted
Consequences for the lender
Consequences for the investor
affecting utility costs should be included. The
report should also include a list of low cost/
no cost measures and preliminary list of future
energy efficiency measures to be considered.
Any benchmarking data should also reflect this
additional information.
3.5 Reporting Building Energy
Assessment Results
The key deliverable at the end of the assessment
process is the report drafted by the auditors/
consultants. To ensure that his own interests are
fulfilled the owner can specify the format the report
should be in order to capture relevant building
and system related information. Information in
tables or spreadsheets is useful in the maintenance
of energy data in future, and ease of analysis to
identify energy or cost savings measures. (Refer to
Appendix G)
The report from a Level I - Preliminary
Energy Assessment is based mainly on available
documents and on physical inspections. A
technical building description should be included,
describing the building, major systems, operation
and maintenance schedule and other information
that may have a bearing on the energy consumption
in the facility [BEE, www.bee-india.nic.in].
Information in the building description should
include building type, use, construction, age and
condition. The building systems described should
include lighting, HVAC and water. Energy use
and energy indexing should also be included.
A clear graphical presentation and tables of
at least two years of annual utilities consumption
and cost data should be constructed in a format
that permits easy comprehension and simple
“apples-to-apples” comparisons with different
facilities’ reports. Analysis of the unit cost of
electricity/energy the facility is using and other
key aspects of the utility rate including time-ofuse,
demand, power quality, and other charges
In the case of a Level II – Comprehensive
Energy Assessment, the report is significantly
more detailed and comprehensive than the
previous level of assessment. All of the baseline
data collected in the previous levels of assessment
is augmented with additional data collected over
the period of the assessment. The analysis portion
of the report is more extensive, providing lists
of potential energy efficiency measures and an
evaluation of each measure including potential
energy savings of this list, the most favorable
projects should be further analyzed to verify if
there is a need to proceed to Level III analysis for
the energy efficiency measure.
The report generated by a Level III –
Detailed Analysis of Capital Intensive Measure
assessment gives the owner all the information
needed to decide to proceed with the studied
measures, the amount of financing required
and an implantation plan to follow. This should
involve at a minimum a preliminary design and
costing of each measure, and financial analysis
of payback period. Details of design and cost
estimation should be included as supplementary
to the main body of the report.
Appendix H provides Guideline for
Preparation of Energy Audit Report.
The Energy Efficiency Committee should
fully review the report before accepting the final
draft. If the committee is not satisfied with the
report provided at the end of the assessment as
it does not adequately addresses the initial agreed
upon scope of work, the auditor/ consultant and
the Committee should work together to address
the situation. Once a satisfactory report has been
received, the owner can move forward with the
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